AAT3125 Datasheet, PDF (6/12 Pages) Advanced Analogic Technologies – USB OTG 5V Charge Pump

AAT3125
Typical Characteristics
USB OTG 5V Charge Pump
Unless otherwise noted, V_IN = 3.5V, C_IN = C_OUT = C₁ = C₂ = 1µF, T_A = 25°C.
Charge Pump ON/OFF Timing
OUT
(1V/div)
IIN
(100mA/div)
EN
(1V/div)
Time (2ms/div)
Efficiency vs. Load Current
100
90 ^{VIN = 3.4V}
80
70
60
V_IN = 3.8V
50
40
30
20
10
0
1
10
100
1000
Load Current (mA)
Charge Pump Waveforms
(100mA load)
IN
Load Transient Response
(10mA to 100mA)
OUT
Time (1µs/div)
Charge Pump Output Voltage
vs. Load Current
5.5
5.3
5.1
4.9
4.7
4.5
1
V_IN = 3.9V
V_IN = 3.7V
10
100
1000
Load Current (mA)
6
Time (4ms/div)
Charge Pump Output Voltage vs. Input Voltage
(I_LOAD = 100mA)
6
5
4
3
2
1
0
0
1
2
3
4
5
Input Voltage (V)
3125.2005.12.1.4